PreconcentrationandSeparationofTraceCopperinWaterSampleswithNanometer-SizeTiO2ColloidandDeterminationbyFAAS

被引：3

作者：

QIAN Shahua LIN Han LI Xueqin XIAO Mei DENG Hongbing XIANG Luojing School of Resource and Environmental Science Wuhan University Wuhan Hubei China ^{[430079
]}

机构：

来源：

WuhanUniversityJournalofNaturalSciences | 2007年 / 02期

关键词：

Cu(Ⅱ); nanometer-size TiO2 colloid; preconcentra-tion; flame atomic absorption spectrometry (FAAS);

D O I：

暂无

中图分类号：

X132 [环境分析化学];

学科分类号：

083001 ;

摘要：

A new absorbent of nanometer-size TiO2 colloid for Cu（Ⅱ） was studied in this work. The adsorption rate could reach above 99% when the pH values were at the range of 5-6. The adsorption balance time, adsorption capacities, and the eluent were investigated. A novel method of trace Cu（Ⅱ） preconcentration and separation with nanometer-size titanium dioxide colloid and determination by flame atomic absorption spectrometry （FAAS） was advanced. The detection limit （3σ） of the method was 1.15 μg· L-1 , and the relative standard deviation （R.S.D） was 1.53% （n=6）. Environmental sample experiments were also conducted to test the feasibility of the method, and it came out that the recovery rates were between 95.9% and 97.8%.

引用

页码：349 / 352

页数：4